martin



G. MARTIN. BRIGKV'MAGHINE.

2 Sheets-Sheet 1.

(No Model.)

Patented Nov. 20, 1883.

. (No Model.) 2 sheets-sheet 2.Y G. MARTIN.

BRICK-MACHINE.

No. 288,649. Patented Nov. 20, 1883.

N. PETERS. PhaxLilwgmplzf. wayhingmn. n. C.

NTED STATES ATENE OFFICE.

GAYLORD MARTIN, OFMILWAUKE, VISCONSIN, ASSIGNOR QF TVVO-IHIRDS TO THOMAS C. GURNEY, OF lSAME PLACE.

BRICK-MACHINE.

srncrrrcarroiv forming part `or Letterratent No. 288,649, dated November Application lcd July 1G, 1833.

To all whom, i? 77mg/ concern:

ing my improved briclmnachine, Figure 1 is a side elevation. Fig. 2 is an end elevation. Fig. 3 is a plan view. 4 is apartial section on the line a Fig. 2. Fig. 5 is a plan view of the press-gage. Figs. Gand 7 represent a modification. Fig. 8 represents the clutclroperating mechanism.

In the accompanying drawings,representing my improvements in brick-machines, AA are the upright standards or posts, which, in connectionwith suitable transverse timbers, B B, and the boarding `or sides G G, forman inclosed space or box, within which the pug-mill E,provided with the wipers F F, revolves, and delivers or forces the clay, introduced at the upper part of the machine, into the press-box G. `The machine rests on a framing composed of suitable sills, D D D.

H is the driving-shaft, to which the power required to drive the machine is applied inl any suitable manner, and which, by means of the bevel pinion and gear a b, transmits rotary movement to the shaft c of the pug-mill.` The plunger I is caused to reciprocate ,within the lpress-box by means of the plunger-rod el, connection e,V and crank f on the shaft g receiving motion from the gear t' on the shaft of the pugmill by the pinion h. The gear i serves also to rotate the shaft j, provided at its outer end with the crank 7c, which, by means of the connection Z,\actuates the rock-shaft m, from which a reciprocating mot-ion is transmitted to the roller J, by which the brick-molds are advanced on the table K. The direction of the rot-ation of the shaft of the pug-mill is rep- Y resented by the arrow in Fig. 3. An open- (No model.)

ing, L, Fig. 4, is formed in the side easing of the'pugmill or the frame-work of the machine in any suitable way, its front p lbeing made removable, and it being also provided with the swinging stone-door o. press-box consists of a `series of' cross-bars, (represented bythe dotted lines r, Fig. 2, and

i one of which is seen in section in Fig. 4,) which form a grate or a series of rectangular openings, through which the clay is forced by the downward motion of the plunger Into :the molds. The bars r, constituting the .grated The bottom of the bottom of the press-box, are sharpened or beveled toward their upper edges, as repre sented in Fig. 2 by the dotted lines. The ends of the press-boX are tied together on the front side of the bar s, against which a projecting lip on the lower edge of the removable front p is fitted, as shown in the lsectional view, Fig. 4. The upper part of the front of the press-box is held in place by the` slotted bolts and keys t t, or other suitable device.

In order to vary the throw or movement of the plunger I within, the press-box,` I employ the revolving stepped pressgage N between the plunger-rod d and the plunger I. The sleeve y is attached to the plunger by suitable arms or ilanges at its lower end, its upper end `being arranged to slide through the bearing P on the framework of the machine. The plunger-rod d moves freely within the sleeve Q, being pro= vided with a pin, lug, or projection, u, which projects outward through aslotfv in the sleeve. The pressgage N is fitted to the sleeve so that it may be easily turned thereon, being provided on its lower end with a series of notches, w, into any one of which the point ofthe screw x fits, so as to retain the pressgage in any position in which it may be placed, and to prevent its rotation on the sleeve. The pressa gage is provided with a projecting rim or flange y, Figs. l and 2, by grasping which with the hand it may be turned or given a partial rotation about the sleeve q, the press-.gage sliding upward slightly to permit the points plunger.

between the notches wlto pass over the upper end of the screw x. The body of the pressgage is provided with a spiral series of stepsl tion represented in Fig. 2, the smallest alnount of motion will bc imparted to the plunger, because the pin u will descend through the whole length of the slot c before coming in contact with one of the steps-in fact, no motion atall -will be given the plunger if the length ofthe slot c and the height ofthe series lof Vsteps be made equal to the throw of the plunger-rod. By turning the front side of the press-gage one step to the left hand in Fig. 2,

,.however, the highest or longest of the spiral seriesofsteps z will be interposed between' rod, and by setting any one of the shorter` stepsfin the path of the pin a, a movement corresponding with the height of the particular step employed will be transmitted to the Any number of steps may be used in the series.

It is obvious that the number of the notches ,w ou the lower end of the press-gage N should of the sleeve q, a lug or screw being attached to the press-gage in such position as to engage with the notches, the arrangement of the parts vas shown in the drawings being reversed without affecting the result to be attained by the device. A lug or point may in either case be used to engage with the notches; but .I prefer to employ the screw x, as by its means I am enabled to compensate for wear on its point or to vary the resistance encountered in throwing the press-gage.

The plunger I consists of a plate or body of a size and shape to reciprocate freely within the press-box, provided on the side next the opening L with an upwardly-projecting flange, c', Fig. 4, which closes the opening L when the plunger descends below the top of the opening, and with a beveled lip or cut-off, b, on its lower side next the opening, the function 'of which lip is to retain a portion of the clay within the press-box, which might otherwise be forced back again into the lower part of the `pug-mill by the descent of thc plunger. rlhis cut-oftl lip b is preferably brought to an edge or beveled from the inside, and it extends the whole length of the plunger, as indicated by the dotted lines in Fig. 2.

In my present machine I have combined the stone-door with two levers-one on each side of the machine-each lever being provided with a spring and a catch or suitable fastening device, so that the stone-door may be readily opened by the operator without leaving his station in front of the machine. The stone-door o is pivoted to each end of the press-box G by means of the arms e e, so that it may swing outward, as represented at o', Fig. 4, for the purpose of permitting any stone or other hard substance which may project above the surface of the clay in the mold to` be discharged from the press-box by the forward movement of the molds. The arms c c are connected together by the bar f', which passes across from one arm to another in front of the press-box, the arms, stone-door, and connecting-bar being preferably cast in one piece. To each end of the stone-door are pivoted the rods d d, which are bent around the corners of the machine and pass backward along its sides, being connected with the levers The levers Q Q are pivoted at their lower ends at g g to the frame-work of the machine,

their upper ends being free to swing outward, as represented by the dotted lines in Fig. l, when it is desired to open the stone-door, but being held in their usual position, when the stone-door is closed, by the pins or catches 7L 'h'. Ihe levers will spring laterally sufficiently to permit of their being detached from the catches or fastening devices when it is desired to open the stone-door, although spring-catches on either the levers or the frame-work of the machine may, if desired,'bc employed.

The bars d d pass through openings in the levers Q Q, or through eyes attached to them, and extend some distance behind them, being provided with the springs i', Fig. 1, and adjusting-nuts j. These springs 1l permit the opening of the stone-door when the mold contains any hard substance which projects upward sufficiently to swing the door o outward as the mold is forced forward.

In the construction represented in the drawings the levers Q are shown as formed with a bend or offset in them for the purpose of getting around the forward ends of the side beams, B. rlhe levers may, however, be made straight by arranging the side beams in any other suitable manner.

The molds in which the brick are formed are of any ordinary or usual construction, being arranged to be moved along on the table K by the roller J, as indicated by the dotted lines S, Fig. 1. The table consists of a suitable frame-work, preferably provided with a series of slats running lengthwise of the machine, as represented in the drawings. The table is provided with a series of rollers underneath the press-box, as indicated by the dotted circles T, Fig. l, on which the molds rest at this part of their course through the machine. The table is pivoted to the posts IOO IIO

AA at 7c' on the rear side of the machine, so

that its forward end may be depressed or lowered, as represented by the dotted lines in Fig. l, the4 sockets or journals Z', in which the pivots turn,being constructed so that they may be adjusted up and down by the screws m. The front end of the table is supported onthe rollers o' 0', carried by the arms n' n' on the rock-shaft U, extending across the machine underneath the press-box.

The shaft U is arranged to turn in journals p'p', carried by plates q' q', bolted to the posts of the machineby bolts passing through slotted holes, and provided with the adjnstingscrews r' r', by which the 'distance between the top of the table and the lower side of the grate forming the bottom of the press-box may be varied. i

The rock-shaft U is provided at one end with a handle or lever, V, which is held in the vertical position by the spring-catch or other suitable fastening device, s', by detaching which and swinging the lever V outward the rollers o' o will be depressed and permit the front end of the table K to move downward, as indicated by the dotted lines in Fig. l.

A vibratory motion is imparted to the roller J, by which'the molds are advanced along the table K by the crank W on the rock-shaft m, located in suitable bearing underneath the table, by the double connections t' t",which are pivotally attached to the slotted levers Y Y',

which are attached to the ends of the roller J.

4 The reciprocating movement of the crank NV,

the connections, lever, and roller are indicated by the full and dotted lines in Fig. 1 the position of the roller at the extremity of its backward throw, at which time, in the practical operation of the machine, a mold is placed on the table in front of the roller, being indicated by the dotted circles at J', Fig. 1. The forward ends of the bent connections t' t" are pivoted tothe crank XV under or nearly under the center of the machinehand they extend outward, their rear ends being pivoted to the end of a bolt or rod passing through the levers YY', whichbolt is threaded and provided with nuts on each side of the lever, so as to adjust the length of the connections, or the connections may be attached to the levers by the yoke u', as represented in Figs. 6 and 7, which is pivoted to the lever Y at o', and is adj ustably attached to the connection t' by the nuts w'.

`The lower ends of the levers Y Y' are slotted,

as represented at x', Fig. l, the slots inclosing the pins or pivots c' c', aliixed to the framework. By this arrangement the roller is allowed to traverse horizontally, resting on the slats forming the table K.

A bar of any suitable cross-section may be employed in place of the roller J, represented in the drawings. The upper ends oi'- the levers Y Y' are provided with suitable bosses, through which pass the pivots or shaft of the roller or bar, if the latter be used.

In order to prevent the accidental engagement ofthe clutch on the driving-shaft H, I

`arrange the clutch-levers and mechanism so thatthe weight of the parts serves` to keep the clutch disengaged. The pinion a is loose on the shaft H, its hub being provided on one side with the jaw-clutch y. The corresponding jaw-clutch, b", is splined on the shaft H, so that it is compelled to revolve therewith, but can fbe moved lengthwise thereon. lIhe forked end of the lever c" engages with a groove in the clutch b", being arranged to swing horizont-ally on a pivot, d", Fig. 3, sustained by an arm, c", attached to any convenient part of the frame-work. To the outer end of the lever c", at Z", Fig. 3, is pivotally connected the lever f", which forms one half of a toggle-joint, the other half being formed by the arm g", Fig. 8,pivoted at its inner end, at h", to the lever f", and at its outer end, at i", to a suitable lng or casting, j", attached to the machine. i i

To the outer end of the lever f" is attached the rod or handlem", which extends downward within .reach of the operator in front of the Inachine. By pulling down the rod m" the levers constituting the toggle-joint are moved from the positions indicated by the dotted lines f' g' to those represented by the full lines f" g" in Fig. 8, and the upper end of the lever c" is forced toward the left hand in Fig. 8, thereby withdrawing the clutch b" from its engagement with the clutch y" on the bevel-pinion a, and stopping the machine. .The weight of the parts serves to retain the clutches disengaged until the operator pushes the rod on" upward, thereby causing the clutch b" to slide into mesh with the clutch fj', and again starting the machine into motion.

rIlhe lower end of the rod m" is provided with a catch or ring, which is caught on the `pin or stud n", Fig. 2, on the frame, to insure the continued engagement of t-he clutches and the operation ofthe machine.

The toggle-joint secures the application of a great amount of power to the lever c",t0 cause the disengagement of the clutches. The joint at Z" should be made so as to permit of the requisite motions 0f the parts connected by it.

I claiml. The combination, with the reciprocating plunger of a brickmachine, of the plungerrod d, provided with pin or lug u, and the revolving stepped pressgage N, substantially as and for the purposes set forth.

2. The combination, with the reciprocating plunger of a brick-machine, of the plungerrod di, pin or lug a, and the revolvingstepped press-gage N, arranged to be locked in any desired position by means of a series of notches and a lug fitting therein, substantially as de scribed. i

3. The combination, with the reciprocating plunger of a brick-machine, provided with slotted sleeve q, oi' the plunger-rod d, pin u, and revolving stepped press-gage N, substantially as described.

ICO

IIO

4. The combination, with the reciprocating of a brick-machine and to feed the molds, of

plunger of a brick-machine, of the plungerrod d, pin or lug u, the revolving stepped press-gage N, the series of notches w, and screw x, substantially7 as described.

5. The combination, with the press-box of a brick-machine, of the stone-door 0, levers Q Q, springs i" i, rods d d', and fastening dcvices h h', substantially as described.

6. The combination, with the pug-mill and press-box of a brick-machine, of the reciprocating plunger I, provided with the cut-off lip b. substantially as described.

7. Theconibinatioinwith thevibrating roller or bar J, arranged to reciprocate on the ltable the levers Y Y', crank W, rock-shaft m,`and suitable connecting mechanism, substantially as and for the purposes set forth.

8. The combination, With the drivingshaft 2o H, provided with jaw-clutch y', of the sliding jaw-clutch b, horizontally-vibrating lever c,

toggle-lever g, pivoted to frame of the machine, and toggle-lever f, having its outer end connected to the hand-rodm, substan- 25 tially as and for the purposes described.

GAYLORD MARTIN. Witnesses:

Gno. B. SELDEN, H. G. PHILLIPS. 

